担保人办理内保外贷业务时，应对以下哪些方面进行审核？（）
A. 债务人的主体资格
B. 担保项下资金用途
C. 预计的还款资金来源
D. 相关交易背景
混合砂浆具有较好的和易性，尤其是保水性，常用来砌筑地面以上的砖石砌体。
A. 正确
B. 错误
拉卸是拆卸工件中常用的方法，适用于精度较高，不许敲击和无法敲击的零件。
A. 正确
B. 错误
The lifeboats on your vessel are stowed on cradles on deck and are handled by sheath-screw boom davits. Which of the following statements about launching a boat is TRUE?（）
A. The boat should be hoisted a few inches clear of the cradle before cranking out the davits
B. The inboard gripes should be cast off before the outboard gripes
C. The outboard section of the cradle must be released
D. The tricing pendants will automatically bring the boat alongside at the embarkation deck
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